Home / 103,134.43-154,701.76-28,255.22

Finding the Fourth Proportional to 103,134.43, 154,701.76 and 28,255.22

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Solution

The fourth proportional to 103,134.43, 154,701.76 and 28,255.22 is: 42,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,134.43 : 154,701.76 = 28,255.22 : x
  2. Step 2: Convert to fraction form
    103,134.43/154,701.76 = 28,255.22/x
  3. Step 3: Cross multiply
    103,134.43x = 154,701.76 × 28,255.22
  4. Step 4: Simplify right side
    103,134.43x = 4,371,132,263.19
  5. Step 5: Solve for x
    x = 4,371,132,263.19/103,134.43
  6. Step 6: Final answer
    x = 42,382.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.